Step 1 of 6

Install the 3CX app (your VettedCalls extension runs inside it)

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3CX app page on the Google Play Store

Tap the Google Play install link in your VettedCalls welcome email — it points to the 3CX app, which hosts your VettedCalls extension. Or open Google Play and search for 3CX as a backup. Direct link. Free. Install only — do NOT open the 3CX app yet. The activation file in Step 2 will launch it automatically and provision your extension. If you open it now, you'll see a QR-code prompt that you can ignore (it's not how we activate).

Why this matters: Screened calls reach you via VoIP push instead of your cell line. 3CX rings with the actual caller's number visible, so you know who's calling before you answer.

Step 2 of 6

Open your VettedCalls welcome email and tap the activation file

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Android "Open with" picker showing 3CX as a destination for the .3cxconfig file

Find the VettedCalls welcome email in your inbox on your Android phone. Tap the attached file (vettedcalls-XXXX.3cxconfig). Android shows an Open with picker - choose 3CX. 3CX opens and provisions your VettedCalls extension automatically.

Why this matters: The activation file holds your VettedCalls extension credentials. Tapping it provisions the extension into 3CX in seconds - no usernames or passwords to type.

Step 3 of 6

Allow the requested permissions

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Android system prompts for Phone, Microphone, Notifications, Display over other apps

When the 3CX app asks, tap Allow for every prompt: Phone, Microphone, Notifications, and Display over other apps. Then go to Android Settings → Apps → 3CX → Battery → Unrestricted. Samsung Galaxy users: also add 3CX to Never sleeping apps (Settings → Battery → Background usage limits).

Why this matters: Android aggressively kills background apps to save battery. Without Battery: Unrestricted (and the Samsung-specific Never sleeping apps exemption), 3CX may sleep through your incoming VettedCalls calls.

Step 4 of 6

Forward all calls to your VettedCalls extension

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Android Phone dialer showing the CFU forwarding code

Open your Android Phone app's keypad and dial the forwarding code for your carrier (pick yours below). Press the green call button. Wait for the short confirmation tone.

Your carrier:

Forward all calls to VettedCalls**21*NUMBER#

Disable forwarding later##21#

Replace NUMBER with the digits of your VettedCalls extension number (from your activation email, no spaces or punctuation). Wait for the short confirmation tone after dialing.

Why this matters: This is the standard unconditional call forwarding code your carrier supports. Every incoming call now routes to VettedCalls first; spam is screened, legitimate calls are bridged through to your VettedCalls extension.

Step 5 of 6

Test it — have anyone call your cell

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3CX app ringing with an incoming VettedCalls extension call

Have anyone call your regular cell number — friend, family, anyone reachable. Your Android should not ring. After about 3-5 seconds, 3CX should ring with the screened call (your VettedCalls extension). Answer it like any normal call.

Why this matters: If your Android does ring (instead of staying silent), the forwarding code didn't take effect — re-dial the code from Step 4 and try again. If 3CX didn't ring, check the Battery setting is still Unrestricted, and that Notifications are enabled.

Step 6 of 6

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You're live.

All calls now route through VettedCalls. Real callers reach your phone with full context — name, intent, urgency. Spam stops at the gate. Emergency-keyword callers (flood, gas, no heat, sparking, burst, leak) always reach you, 24/7.

If anything feels off in the next 24 hours, text HELP to your VettedCalls number and we'll walk it through with you.

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